Thanks, I also tried using build.sh after making the changes to the Makefile.am but same issue.Do you happen to know the current steps for a GeForce GTX 780 Ti ?Git clone, cd into folder, edit makefile, ./build and also manually doing the build and make steps produce the same error.It properly compiles however and runs, but that error spamming produces no hash.

*** ccminer 1.8 for nVidia GPUs by tpruvot@github *** Built with the nVidia CUDA Toolkit 7.5

Originally based on Christian Buchner and Christian H. project Include some of the work of djm34, sp, tsiv and klausT.